InChI=1S/C15H20O7S/c1-4-10-6-14(15(3,17)8-21-23(18,19)20)22-13-5-9(2)12(16)7-11(10)13/h4-5,7,10,14,16-17H,1,6,8H2,2-3H3,(H,18,19,20)